CN207635359U - A kind of MMA exhaust gas recovery systems - Google Patents
A kind of MMA exhaust gas recovery systems Download PDFInfo
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- CN207635359U CN207635359U CN201721734348.9U CN201721734348U CN207635359U CN 207635359 U CN207635359 U CN 207635359U CN 201721734348 U CN201721734348 U CN 201721734348U CN 207635359 U CN207635359 U CN 207635359U
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- Prior art keywords
- tail gas
- exhaust
- outlet
- spent acid
- storage tank
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Abstract
The utility model is a kind of MMA exhaust gas recovery systems, and the gas outlet of spent acid tank top is connected with tail gas condenser by pipeline, and tail gas buffer is connected on tail gas condenser, and the lower part of tail gas condenser is equipped with the condensate outlet being connected with spent acid storage tank；The offgas outlet of the acylation section reactor I and acylated section reactor II is respectively connected by exhaust pipe line with aforementioned tail gas buffer; the tail gas buffer is equipped with exhaust outlet; exhaust outlet is equipped with the exhaust line being connected with incinerator; vacuum pump is housed on exhaust line, the pneumatic diaphragm pump being connected with spent acid storage tank is connected on tail gas buffer liquid-phase outlet.The utility model sends spent acid storage tank back to after condensing the partial tail gas that spent acid storage tank is gone out by increase tail gas condenser and tail gas buffer, reduces gas phase band liquid, reduces vacuum pump load；Tail gas is not condensed mix in tail gas buffer with the tail gas come out by acylated section reactor I to be sent into incinerator after boosting and be handled, reduce and pollute.
Description
Technical field
The utility model is related to a kind of acid tail gas recovery system, especially a kind of MMA exhaust gas recovery systems.
Background technology
MMA refers to methyl methacrylate, MMA device acid tail gas composition：MMA spent acid tank area is equipped with two 2000m3
Spent acid storage tank, for tail gas mainly by the sour gas containing organic matters such as MMA, methanol of spent acid tank discharge, MMA devices are acylated section
The acid tail gas that two reactors generate contains the poisonous and harmful substances such as sulfur trioxide, hydrogen cyanide, amidic-salt.
The vent gas treatment mode of existing spent acid storage tank is to discharge on the spot, and containing part is toxic or sour gas in tail gas
Body, such vent gas treatment mode cause air certain pollution, and causing harm to the health of occupational staff influences.
In addition two reactor tail gas processing modes of existing acylated section are that pipeline to SAR device incinerators burn,
Acylated gaseous pressure is relatively low, and pipeline is longer, and the salt in acylated gas phase is caused to be easy to block pipeline.
Invention content
Technical problem to be solved in the utility model be in view of the deficiencies of the prior art, provide it is a kind of it is simple in structure, make
With the MMA exhaust gas recovery systems for facilitating reduction to pollute.
Technical problem to be solved in the utility model realizes that the utility model is by technical solution below
A kind of MMA exhaust gas recovery systems, including spent acid storage tank, acylated section reactor I, acylated section reactor II and incinerator, feature
It is：The gas outlet of the spent acid tank top is connected with tail gas condenser by pipeline, on the gas outlet of tail gas condenser upper end
It is connected with tail gas buffer, the lower part of the tail gas condenser is equipped with condensate outlet, and condensate outlet is connected with spent acid storage tank,
Condensate liquid is returned in spent acid storage tank by gravity；The offgas outlet of the acylation section reactor I and acylated section reactor II is divided equally
It is not connected with aforementioned tail gas buffer by exhaust pipe line, the tail gas buffer is equipped with exhaust outlet, is set on exhaust outlet
There is the exhaust line being connected with incinerator, vacuum pump is housed on exhaust line, the tail gas buffer bottom goes out equipped with liquid phase
Mouthful, it is connected with pneumatic diaphragm pump on liquid-phase outlet, pneumatic diaphragm pump is connected by recovery channel with spent acid storage tank.
Technical problem to be solved in the utility model can also be further realized by technical solution below, described
It is equipped with pressure controller on the pipeline and exhaust pipe line connected on spent acid tank top gas outlet.
Technical problem to be solved in the utility model can also be further realized by technical solution below, described
Vacuum pump is water-ring vacuum pump.
Technical problem to be solved in the utility model can also be further realized by technical solution below, described
It is equipped on exhaust line and exhaust pipe line between insulating layer, insulating layer and exhaust line or exhaust pipe line equipped with electricity
Heating tape.
Compared with prior art, the utility model is gone out spent acid storage tank by increasing tail gas condenser and tail gas buffer
Partial tail gas condensation after send spent acid storage tank back to, reduce gas phase band liquid, reduce vacuum pump load；Tail gas is not condensed and by acylated section
The tail gas of reactor I and acylated section reactor II out is sent into after mixing boosting in tail gas buffer in incinerator
Reason reaches the environmentally friendly production standard of production " zero-emission " modernization, while the tail gas that can be reduced in this way in spent acid storage tank is directly arranged
Environmental pollution caused by putting.Be connected exhaust pipe line and tail gas buffer with acylated section reactor I and acylated section reactor II
Electric-heating belt is set on connected exhaust line acidylate salt in tail gas and be unlikely to Crystallization Plugging, while reducing tail gas in the duct
Condensation hydrops.
Description of the drawings
Fig. 1 is a kind of flow diagram of the utility model.
Specific implementation mode
With reference to attached drawing 1, a kind of MMA exhaust gas recovery systems, including spent acid storage tank 1, acylated section reactor I 2, acylated section reaction
Device II 3 and incinerator 8.The gas outlet at 1 top of the spent acid storage tank is connected with tail gas condenser 5, tail gas condenser 5 by pipeline
Tail gas buffer 6 is connected on the gas outlet of upper end, the lower part of the tail gas condenser 5 is equipped with condensate outlet, and condensate liquid goes out
Mouth is connected with spent acid storage tank 1.The offgas outlet of the acylation section reactor I 2 and acylated section reactor II 3 respectively passes through tail gas
Feed-line 9 is connected with aforementioned tail gas buffer 6, and the tail gas buffer 6 is equipped with exhaust outlet, and exhaust outlet is equipped with and SAR
（Retrieval of sulfuric acid）The connected exhaust line 10 of device incinerator 8 is equipped with water-ring vacuum pump 7 on exhaust line 10.It is slow in tail gas
It rushes 6 bottom of tank and is equipped with liquid-phase outlet, pneumatic diaphragm pump 4 is connected on liquid-phase outlet, pneumatic diaphragm pump 4 is by recovery channel and gives up
Acid storage tank 1 is connected.
It is equipped with pressure control on the pipeline and exhaust pipe line 9 connected on 1 top gas outlet of the spent acid storage tank
Device.Insulating layer, insulating layer and exhaust line 10 or exhaust pipe are equipped on the exhaust line 10 and exhaust pipe line 9
Electric-heating belt is housed between line 9.Acidylate in tail gas salt not Crystallization Plugging using electric-heating belt, while reducing tail gas in pipeline
In condensation hydrops.
The flow of this recovery system is as follows：1 top tail gas of spent acid storage tank is controlled by pressure controller pressure seperating range control
Into exchanging heat in tail gas condenser 5, condensate liquid returns to spent acid storage tank 1 by gravity, does not condense tail gas from the upper end gas outlet
Into in tail gas buffer 6.
Tail gas in acylated section reactor I 2 and acylated section reactor II 3 passes through exhaust pipe by pressure controller control
Line 9 enter tail gas buffer 6 in, then with do not condensed in spent acid storage tank 1 together with tail gas by tail gas buffer 6 through liquid-ring type vacuum
One is back to 7 entrance of vacuum pump after 7 boosting of pump, one send to SAR devices incinerator 8 and carries out burning disposal.Tail gas buffer 6
In condensate liquid come out from liquid-phase outlet by pneumatic diaphragm pump, entering spent acid storage tank by recovery channel is recycled.
Claims (4)
1. a kind of MMA exhaust gas recovery systems, including spent acid storage tank, acylated section reactor I, acylated section reactor II and incinerator,
It is characterized in that：The gas outlet of the spent acid tank top is connected with tail gas condenser by pipeline, tail gas condenser upper end
Tail gas buffer is connected on gas outlet, the lower part of the tail gas condenser is equipped with condensate outlet, condensate outlet and spent acid
Storage tank is connected；The offgas outlet of the acylation section reactor I and acylated section reactor II respectively by exhaust pipe line and
Aforementioned tail gas buffer is connected, and the tail gas buffer is equipped with exhaust outlet, and exhaust outlet is equipped with the exhaust being connected with incinerator
Pipeline is equipped with vacuum pump on exhaust line；The tail gas buffer bottom is equipped with liquid-phase outlet, is connected on liquid-phase outlet pneumatic
Diaphragm pump, pneumatic diaphragm pump are connected by recovery channel with spent acid storage tank.
2. MMA exhaust gas recovery systems according to claim 1, it is characterised in that：On spent acid tank top gas outlet
It is equipped with pressure controller on the pipeline and exhaust pipe line of connection.
3. MMA exhaust gas recovery systems according to claim 1, it is characterised in that：The vacuum pump is water-ring vacuum pump.
4. MMA exhaust gas recovery systems according to claim 1, it is characterised in that：The exhaust line and exhaust pipe
It is equipped on line between insulating layer, insulating layer and exhaust line or exhaust pipe line and electric-heating belt is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734348.9U CN207635359U (en) | 2017-12-13 | 2017-12-13 | A kind of MMA exhaust gas recovery systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721734348.9U CN207635359U (en) | 2017-12-13 | 2017-12-13 | A kind of MMA exhaust gas recovery systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207635359U true CN207635359U (en) | 2018-07-20 |
Family
ID=62863236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721734348.9U Active CN207635359U (en) | 2017-12-13 | 2017-12-13 | A kind of MMA exhaust gas recovery systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207635359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236974A (en) * | 2021-04-28 | 2021-08-10 | 新疆天利高新石化股份有限公司 | Safe pipeline conveying method for high-concentration vinyl acetylene-rich alkyne carbon four |
-
2017
- 2017-12-13 CN CN201721734348.9U patent/CN207635359U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236974A (en) * | 2021-04-28 | 2021-08-10 | 新疆天利高新石化股份有限公司 | Safe pipeline conveying method for high-concentration vinyl acetylene-rich alkyne carbon four |
| CN113236974B (en) * | 2021-04-28 | 2022-05-24 | 新疆天利高新石化股份有限公司 | Safe pipeline conveying method for high-concentration vinyl acetylene-rich alkyne carbon four |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 222000 Jiangsu, Lianyungang City, Xuwei District, Lianyungang District, two Road North Patentee after: Jiangsu sailboat Petrochemical Co. Ltd. Address before: 222000 room 205, building 7, Hong Kong Petrochemical, Hong Kong Road, Xuwei New District, Lianyungang, Jiangsu Patentee before: Jiangsu sailboat Petrochemical Co. Ltd. |
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| CP02 | Change in the address of a patent holder |